WO1999065005A3 - Method and system for monitoring an area - Google Patents

Method and system for monitoring an area Download PDF

Info

Publication number
WO1999065005A3
WO1999065005A3 PCT/NO1999/000175 NO9900175W WO9965005A3 WO 1999065005 A3 WO1999065005 A3 WO 1999065005A3 NO 9900175 W NO9900175 W NO 9900175W WO 9965005 A3 WO9965005 A3 WO 9965005A3
Authority
WO
WIPO (PCT)
Prior art keywords
area
registering
image
monitoring
reference image
Prior art date
Application number
PCT/NO1999/000175
Other languages
French (fr)
Other versions
WO1999065005A2 (en
Inventor
Hans Olav Nyboe
Tor Onshus
Original Assignee
Leiv Eiriksson Nyfotek As
Hans Olav Nyboe
Tor Onshus
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leiv Eiriksson Nyfotek As, Hans Olav Nyboe, Tor Onshus filed Critical Leiv Eiriksson Nyfotek As
Priority to AU57648/99A priority Critical patent/AU5764899A/en
Publication of WO1999065005A2 publication Critical patent/WO1999065005A2/en
Publication of WO1999065005A3 publication Critical patent/WO1999065005A3/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke

Abstract

Method and system for monitoring an area, especially for detecting gas and/or smoke, comprising the following steps: electronically registering a chosen area with a fixed camera having a two-dimensional sensor matrix providing a reference image of the area, defining at least one reference area within said reference image, repeated registering of the chosen area, providing at least one subsequent image of the area, comparing the subsequent image with the reference image, and registering shifts and/or diffusing of said reference areas, based on the registered changes, generating an electronic or optical signal.
PCT/NO1999/000175 1998-06-08 1999-06-01 Method and system for monitoring an area WO1999065005A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57648/99A AU5764899A (en) 1998-06-08 1999-06-01 Method and system for monitoring an area

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO982640A NO982640L (en) 1998-06-08 1998-06-08 Method and system for monitoring an area
NO19982640 1998-06-08

Publications (2)

Publication Number Publication Date
WO1999065005A2 WO1999065005A2 (en) 1999-12-16
WO1999065005A3 true WO1999065005A3 (en) 2000-03-30

Family

ID=19902133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1999/000175 WO1999065005A2 (en) 1998-06-08 1999-06-01 Method and system for monitoring an area

Country Status (3)

Country Link
AU (1) AU5764899A (en)
NO (1) NO982640L (en)
WO (1) WO1999065005A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9822956D0 (en) * 1998-10-20 1998-12-16 Vsd Limited Smoke detection
AU3201101A (en) 2000-02-07 2001-08-14 Intelligent Security Limited Smoke and flame detection
WO2001071688A1 (en) * 2000-03-20 2001-09-27 Qualisys Digital Media Ab Monitoring system
US7302080B2 (en) 2001-09-28 2007-11-27 Secumanagement B.V. System for installation
SE523456C2 (en) * 2001-09-28 2004-04-20 Wespot Ab System, device and method for setting up a monitoring unit
GB2428472A (en) 2005-07-18 2007-01-31 Sony Uk Ltd Smoke detection by processing video images

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237308A (en) * 1991-02-18 1993-08-17 Fujitsu Limited Supervisory system using visible ray or infrared ray
GB2269506A (en) * 1992-08-07 1994-02-09 Gec Ferranti Defence Syst Intergrated-circuit image sensor
US5289275A (en) * 1991-07-12 1994-02-22 Hochiki Kabushiki Kaisha Surveillance monitor system using image processing for monitoring fires and thefts
EP0805426A2 (en) * 1996-05-03 1997-11-05 Simon Kelly A surveillance system and method of operation thereof
WO1998028706A1 (en) * 1996-12-23 1998-07-02 Esco Electronics Corporation Low false alarm rate video security system using object classification

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237308A (en) * 1991-02-18 1993-08-17 Fujitsu Limited Supervisory system using visible ray or infrared ray
US5289275A (en) * 1991-07-12 1994-02-22 Hochiki Kabushiki Kaisha Surveillance monitor system using image processing for monitoring fires and thefts
GB2269506A (en) * 1992-08-07 1994-02-09 Gec Ferranti Defence Syst Intergrated-circuit image sensor
EP0805426A2 (en) * 1996-05-03 1997-11-05 Simon Kelly A surveillance system and method of operation thereof
WO1998028706A1 (en) * 1996-12-23 1998-07-02 Esco Electronics Corporation Low false alarm rate video security system using object classification

Also Published As

Publication number Publication date
NO982640D0 (en) 1998-06-08
NO982640L (en) 1999-12-09
WO1999065005A2 (en) 1999-12-16
AU5764899A (en) 1999-12-30

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